scholarly journals Synthesis of green and pure copper oxide nanoparticles using two plant resources via solid-state route and their phytotoxicity assessment

RSC Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 3346-3353
Author(s):  
Iman Khaldari ◽  
Mohammad Reza Naghavi ◽  
Elaheh Motamedi
Keyword(s):  
Solid State ◽  
Copper Oxide ◽  
Pure Copper ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Plant Resources ◽  
Stabilizing Agents ◽  
Biological Resources ◽  
Solid State Route ◽  
Conventional Methods

Among the conventional methods in synthesizing nanoparticles, the methods that use biological resources, as reducing and stabilizing agents, can be considered eco-friendly methods.

scholarly journals Vacancy-Mediated Magnetism in Pure Copper Oxide Nanoparticles

2010 ◽  
Vol 5 (4) ◽  
pp. 769-772 ◽  
Author(s):  
Daqiang Gao ◽  
Jing Zhang ◽  
Jingyi Zhu ◽  
Jing Qi ◽  
Zhaohui Zhang ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Pure Copper ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles

scholarly journals The Effects of CuO and SiO2 on Aluminum AA6061 Hybrid Nanocomposite as Reinforcements: A Concise Review

Coatings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 972
Author(s):  
Muntadher Sabah Msebawi ◽  
Zulkiflle Leman ◽  
Shazarel Shamsudin ◽  
Suraya Mohd Tahir ◽  
Che Nor Aiza Jaafar ◽  
...  
Keyword(s):  
Solid State ◽  
Copper Oxide ◽  
Detailed Analysis ◽  
Volume Fraction ◽  
Hybrid Composites ◽  
Matrix Material ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Nano Silica ◽  
Al Matrix

Hybrid composites are obtained by embedding multiple micro and nano reinforcements into the matrix materials. These hybrid composites are helpful to obtain the useful properties of matrix and reinforcement materials. Aluminum matrix is one the most common matrix materials due to its excellent thermal and electrical properties. This review covers various aspects of nanoparticle-reinforced Al hybrid composites. Solid-state recycling of Al only consumes around 5% of the energy utilized in the conventional extraction and recycling methods. This review revolves around the induction of silica and copper oxide nanoparticles into the solid-state recycled Al matrix material to form the hybrid composite. These nanoparticles enhance stiffness, toughness, and high temperature stability for Al hybrid composites. A detailed analysis was carried out for AA6061-grade Al matrix materials along with the silica and copper oxide nanoparticles. The present work focused on the effects of nano silica and nano copper oxide particle reinforcements on Al-based composite manufactured via hot extrusion process. The composite fabrication through solid-state recycling is discussed in detail. A detailed analysis for the effects of volume fraction and wt.% of CuO and SiO2 reinforcement particles was carried out by various characterization techniques. A detailed comparison in terms of mechanical performance of Al-based composites with the addition of nano silica and nano copper oxide particles is presented here to investigate the efficiency and performance of these particles.

Preparation and Characterization of Copper Oxide Nanoparticles Through Solid State Thermal Decomposition of an Aqua Nitrato Copper(II) Complex with a Tridentate Schiff-base Ligand as a New Precursor

2018 ◽  
Vol 9 (1) ◽  
pp. 92-100 ◽  
Author(s):  
Niaz Monadi ◽  
Samira Saeednia ◽  
Parvaneh Iranmanesh ◽  
Mehdi H. Ardakani ◽  
Samira Sinaei
Keyword(s):  
Thermal Decomposition ◽  
Schiff Base ◽  
Solid State ◽  
Copper Oxide ◽  
Schiff Base Ligand ◽  
Copper Oxide Nanoparticles ◽  
Cuo Nanoparticles ◽  
Oxide Nanoparticles ◽  
Tridentate Schiff Base

Introduction: In this study the synthesis and characterization of copper oxide nanoparticles via solid state thermal decomposition of a recently synthesized aqua nitrato copper(II) complex with a tridentate Schiff-base ligand (1) as a new precursor are reported. Materials & Methods: The copper complexes were obtained by sonochemical and solvothermal process and characterized by Scanning Electron Microscopy (SEM), X-ray powder Diffraction (XRD) and FT-IR spectroscopy. The thermal stability of compound (1) was studied by Thermogravimetric Analysis (TGA). The amount of initial reagents and the role of reaction time on size and morphology of nanostructure compound (1) were studied. CuO nanoparticles were simply synthesized at 500 oC under air atmosphere. Results & Conclusion: The diameter of CuO nanoparticles was estimated to be about 200 and 30 nm from copper complex precursor obtained by sonochemical and solvothermal methods respectively.

scholarly journals Biofabrication of highly pure copper oxide nanoparticles using wheat seed extract and their catalytic activity: A mechanistic approach

2019 ◽  
Vol 8 (1) ◽  
pp. 691-702 ◽  
Author(s):  
Foad Buazar ◽  
Sajjad Sweidi ◽  
Mohammad Badri ◽  
Feisal Kroushawi
Keyword(s):  
Copper Oxide ◽  
Pure Copper ◽  
Catalytic Efficiency ◽  
Spherical Shape ◽  
Copper Oxide Nanoparticles ◽  
Seed Extract ◽  
Oxide Nanoparticles ◽  
Wheat Seed ◽  
Visible Absorption ◽  
X Ray

Abstract A facile novel green methodology is presented for the synthesis of highly stable and well-dispersed copper oxide nanoparticles using aqueous wheat seed extract. Under optimal reaction conditions, the wheat seed extract-derived electron-rich biomolecules were functioned as a reducing and capping/ stabilizing agent. The ultraviolet-visible absorption peak at 300 nm was confirmed the formation of copper oxide nanoparticles. Fourier-transform infrared spectroscopy analysis determined Cu–O bonds in nanosample, indicating the active role of functional groups in the wheat seed extract in bio-reduction of Cu cations. X-ray diffraction pattern results demonstrated the monoclinic structure of highly pure biosynthesized copper oxide nanoparticles with a crystallite size of 20.76 nm. The stability of copper oxide nanoparticles was confirmed after 3 months’ storage of product with no sedimentation or suspension. Transmission electron microscopy results showed the spherical shape of nano-particle with an average size of 22 ± 1.5 nm. X-ray photo-electron spectroscopy analyses revealed only copper and oxygen elements in the sample, confirming the purity of copper oxide nanoparticles. Bio-assisted copper oxide nanoparticles demonstrated significant catalytic efficiency and reusability toward 4-nitrophenol removal by an average of 97.6% from aqueous solutions after successive 5 days’ exposure to UV irradiation.

scholarly journals SYNTHESIS AND CHARACTERIZATION OF COPPER OXIDE NANOPARTICLES USING AQUEOUS EXTRACT OF IRANIAN VIOLACEAE FLOWER

2021 ◽  
Vol 15 (3) ◽  
Author(s):  
Ali Davari ◽  
Vahid Hakimzadeh ◽  
Elham Mahdian ◽  
Mostafa Shahidi-Noghabi
Keyword(s):  
Copper Oxide ◽  
Ftir Spectroscopy ◽  
Average Particle Size ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Average Particle ◽  
Stabilizing Agents ◽  
Cuo Nps ◽  
Wide Range ◽  
Uv Visible

In this work, we have synthesized copper oxide nanoparticles using Iranian violaceae flower extract and explored its biological activity. Green synthesis has emerged as a reliable, sustainable and ecofriendly protocol for synthesizing a wide range of nanomaterials and hybrid materials. In this paper, we report the synthesis of Copper oxide nanoparticles by a simple biological route using the extract of Iranian violaceae flower and CuSO4, 5 H2O was used to synthesis the copper oxide Nanoparticles. The synthesized copper oxide nanoparticles were characterized using UV–visible spectroscopy, FTIR spectroscopy, FESEM, EDAX, and XRD techniques. UV –Visible analysis shows a characteristic peak around 266 nm for copper oxide nanoparticles and which is characteristic copper oxide nanoparticles. FTIR spectroscopy was used to characterize various capping and reducing agents present in the plant extract responsible for nanoparticle formation. The surface morphology was characterized using FESEM. The EDAX and XRD pattern suggested that prepared copper oxide nanoparticles were highly pure. The average particle size was calculated as 78.5 nm and α-copper oxide for all diffraction peaks (JCPDS card No. 41-1449) using the XRD technique. Our finding also support the synthesis of CuO NPs from Iranian violaceae flower sources due to relative abundance of plants for the production of reducing and stabilizing agents required for CuO NPs synthesis, potential efficiency of plant biomolecules in enhancing the toxicity effect of CuO NPs against microbes, prevention of environmental pollution due of nontoxic chemicals and degradation effectiveness of CuO NPs synthesized from plant sources. Furthermore, this study provides useful information on the rapid synthesis of CuO NPs with desired properties from plant extracts. Copper oxide NPs can have a good candidate for different applications.

ANTIBIOTIC PROFILE AND ANTIBACTERIAL ACTIVITY OF COPPER OXIDE NANOPARTICLES AGAINST Pseudomonas fluorescens ISOLATED FROM WOUND INFECTION

2019 ◽  
Vol 9 (o3) ◽  
Author(s):  
Haider Qassim Raheem ◽  
Takwa S. Al-meamar ◽  
Anas M. Almamoori
Keyword(s):  
Antibacterial Activity ◽  
Copper Oxide ◽  
Pseudomonas Fluorescens ◽  
Wide Spectrum ◽  
Copper Oxide Nanoparticles ◽  
Morphological Properties ◽  
Clinical Samples ◽  
Oxide Nanoparticles ◽  
Cuo Nps ◽  
Disk Diffusion Assay

Fifty specimens were collected from wound patients who visited Al-Hilla Teaching Hospital. The samples were grown on Blood and MacConkey agar for 24-48 hr at 37oC. The bacterial isolates which achieved as a pure and predominant growth from clinical samples as Pseudomonas fluorescens, were identified using morphological properties and Vitek2 system. The anti-bacterial activity of copper oxide nanoparticles (CuO NPs) against was tested by (disk diffusion assay) using dilutions of (400, 200, 100, 50, 25, and 12.5‎µ‎g/ml). The (MIC and MBC) of each isolate was determined. CuO NPs shows wide spectrum antibacterial activity against tested bacteria with rise zone of inhibition diameter that is proportionate with the increase in nanoparticle concentration. The MIC of CuO NPs extended from 100-200‎µ‎g/ml and the MBC ranged from 200-400‎µ‎g/ml. The antibiotic profile was determined by Viteck 2 compact system (Biomérieux). CuO NPs‎ found highly effective and safe in P. fluorescens wounds infections comparing with used antibiotics.

Green synthesis of copper oxide nanoparticles using aloe vera extract

2020 ◽  
Vol 3 (3) ◽  
Author(s):  
Hemalatha D ◽  
Saraswath S
Keyword(s):  
Copper Oxide ◽  
Biomedical Application ◽  
Aloe Vera ◽  
Copper Oxide Nanoparticles ◽  
Klebsiella Pneumonia ◽  
Oxide Nanoparticles ◽  
Cupric Sulfate ◽  
X Ray Diffraction ◽  
Fouriertransform Infrared Spectroscopy ◽  
Effective Use

In material science, green method for synthesis of nanomaterials is feasible, cheaper and eco-friendly protocol. To accomplish this phenomenon, present study was aimed to synthesize Copper oxide nanoparticles using leaf extract of Aloevera with two different precursors CuCl2.2H2O (Cupric chloride) and CuSo4.5H2O (Cupric sulfate). The extraction of Aloevera is employed as reducing and stabilizing agent for this synthesis.Copper oxide Nanoparticles is effective use of biomedical application due to their antibacterial function. The synthesized Copper oxide nanoparticles were characterized by X-Ray Diffraction Spectroscopy (XRD), Energy Dispersive Spectroscopy (EDX), FourierTransform Infrared Spectroscopy (FT- IR) and Scanning Electron Microscope(SEM). XRD studies reveal the crystallographic nature of Copper oxide nanoparticles. Furthermore the Copper oxide nanoparticles have good Antibacterial activity against both gram negative (E.Coli, Klebsiella pneumonia) and gram positive (Bacillus cereus, Staphylococcus aureus)bacteria.

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